Question: Name a wizard in "Harry Potter".
SPARQL (Wikidata):  select distinct ?obj where { wd:Q8337 wdt:P674 ?obj . ?obj wdt:P31 wd:Q15298259 } 
Answer: Ron Weasley, Hermione Granger, Lord Voldemort, Severus Snape, Ginny Weasley, Minerva McGonagall, Albus Dumbledore, James Potter, Lily Potter, Harry Potter